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Optics Letters

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  • Vol. 19, Iss. 12 — Jun. 15, 1994
  • pp: 853–855

Two-color trapped-particle optical microscopy

L. Malmqvist and H. M. Hertz  »View Author Affiliations


Optics Letters, Vol. 19, Issue 12, pp. 853-855 (1994)
http://dx.doi.org/10.1364/OL.19.000853


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Abstract

We demonstrate a method for nonintrusive scanned near-field optical microscopy. The microscope utilizes an optical trap to position accurately a 50–100-nm-diameter lithium niobate particle. The infrared trapping beam is frequency doubled in the particle, resulting in a visible microscopic optical probe. By separation of the trapping and detection wavelengths, objects that are transparent in the infrared (e.g., biological) may be positioned close to the particle, resulting in high resolution. The current experimental resolution is limited to approximately 500 nm by the properties of the test objects. The theoretical resolution is less than 100 nm.

© 1994 Optical Society of America

History
Original Manuscript: January 4, 1994
Published: June 15, 1994

Citation
L. Malmqvist and H. M. Hertz, "Two-color trapped-particle optical microscopy," Opt. Lett. 19, 853-855 (1994)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-12-853


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